Illuminating-fixture.



H. A. FRAMBURG.

ILLUMINATING FIXTURE.

APPLICATION FILED APR. 2|, I916.

Patented Sept. 12,1916.

2 SHEETSSHEET I H. A. FRAMBURG.

/ ILLUMINATING FIXTURE. APLPLICATION FILED M R.21, 191s;

Patented Sept. 12, 1916.

2 SHEETSSHEET 2.

w Avg k W u v a a a w a m HENRY A. FRAMBURG, OF BERWYN, ILLINOIS,

ASSIGNOR T H. A. FRAMBURG &

COMPANY OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

ILLUMINATING-FIXTURE.

Specification of Letters Patent.

Patented Sept. 12, 1916.

Application filed April 21, 1916. Serial No. 92,631.

concise, and exact description, reference being had to the accompanyingdrawings,

Figure 1 is a forming a part of this specification.

My invention relates to illuminating fixtures, more particularly of theconcealed type for illuminating fixed areas, such as bank windows, showcases, display windows and the like.

Heretofore devices of this class have not been wholly satisfactory dueto the fact that such devices are required to be placed in a corner oragainst the wall or a window and being so placed are renderedinaccessible for cleaning and for lamp renewals which must be performedfrequently to obtain satisfactory operation. It is usual to provide atranslucent or transparent panel in the bottom of the device and due tothe requirement for cleaning both sides of the panel, the same isusually hinged to the remainder of the fixture. If the panel is hingedat the front, that is, adjacent the wall where the.

fixture is mounted,.the panel upon being released, will swing down andmay break or may mar or crack the wall or glass. If it is hung on therear edge of the device, this hinged panel is in the way of cleaning andrenewals, and in addition it is difficult to fasten up in place.

My invention aims to provide an improved structure which will remove theabove difficulties and which will permit of ready and convenientcleaning of the device of both sides of the panel and will permit lamprenewals to be readily performed and which will be relatively simple andinexpensive.

In the accompanying drawings I have illustrated one embodiment of myinvention. perspective view showing one panel in open position; Fig. 2is a sectional view taken on the line 22 of Fig. 1; Fig. 3 is a planbottom view of the device showing one door moved to the open position;Fig. 4 is a cross sectional view taken on thelinet-I of Fig. 2,showingthe glass panel in closed position; Fig. 5 is a similar view showing thepanel moved out edgewise to the limit of such movement; Fig. 6 is across sectional view taken on the line 66 of Fig; 2 showing the glasspanel of that side dropped down into normal open position; Fig. 7 is adiagrammatic view illustrating the manner of applying the fixture to abank cashiers window; and Fig. 8 is a fragmentary detail view.

In the figures a two light unit has been illustrated.

The device comprises a hollow casing having the front wall 10 and a topwall 11 which are, -in this embodiment, secured to each othersubstantially at right angles. A rear curved. wall 12 joins by means ofa short vertical section 13 the top wall 11 so as to. form achannel 141in the top of the casing. Suitable end walls 15 and 16' close the end ofthe casing. The bottom of the casing is provided with two pairs ofguides 17, 18 and 19, 20 for supporting the translucent or transparentpanels 21 and 22 respectively.

The panels 21 and 22 preferably consist of a central portion of frostedglass surrounded by and mounted in suitable metal frames 23 and 24respectively. A rim 25 turned inwardly from the bottom wall covers thefront edge of the panel frames 23 and 2 1. as shown at the right in Fig.3.

The channel 14 is preferably closed by a I tures. It can be seen at oncethat the shelves or tables 34 and 35 will be properly illuminated. Ifdesired, the interior of the rear wall 12 may be provided with suitablerefleeting surface or may itself form the reflector.

If the panels 21 and 22 were hung at the front of the device, it isobvious that when the same were swung downwardthey would strike againstthe window 33 and would either demolish themselves or mar this window.If these panels were hinged at the rear it is obvious that it would bedifiicult to fasten them in closed position. According to my inventionthese panels are opened by means of a compound movement so that they arein effect hung or hinged to the rear portion, but are also fastened atthat point when in the closed position.

The edge of the panel frame lying adjacent the front wall 10 when thepanel is in the closed position is provided with a wire stiffening andpivot member 36, which is slightly longer than the main frame of thepanel so that it projects a short distance at each end and prevents thepanel from being withdrawn sidewise as shown in Fig. 3. The rear curvedwall 12 is provided with the flange portions 37 and 38 which catch thepivot member 36 and prevent the slide from being withdrawn laterally.The frame of the slide or panel is notched, as shown at 3%; and 40, inorder to permit the panel to swing downwardly into the position shown inFig. 1. these notches providing clearance for the ends of the guides 17,18 and 19, 20 when the slide is swung downward. The guides 17, 1S and19, 20 are provided adjacent the rear end of the device, as shown inFigs. 4, 5, and 6, with stops or projections 41, which lie in the pathof the ends of the pivot member 36 which project beyond the slide sothat when the slide is folded down into the position shown in Figs. 1and 6, it will be impossible to move the slide laterallysince theprojection 41 at each end engages the adjacent end of the pivot member36. How ever, when the slide is raised to the position shown in Fig. 5,the pivot member 36 will rise over the stop 41 and will permit the slideto be moved into place edgewise. At the end walls 15 and 16 suitableguides 42 are arranged to receive the pivot member 36 and. to holdtheadjacent portion of the panel firmly against the slide and thusprevent rattling or misplacing of the slide. As shown in Fig. 2, theguides or ways 18 and 1 are formed of strips of sheet metal bent intoangle bars and the ends of these bars are bent downward to form theguides 42. The free edge of each slide is provided with setscrews 44which, when the slides are in place, register with suitable holes 45 ina flange 46 formed on the rear wall 12, as shown at the right of Fig. 1.The set screws 44 may be merely drawn tight against the flange 46, ifdesired, or any other suitable fastening means may be provided.

The operation ot the device is as follows: The casing is positionedpreferably in a corher or at a cornice in the manner shown inv Fig. '7so that the light from the electric lamps 2S and 29 will be castdownward upon the area to be illuminated. \Vhen it is desired to openthe casing. the set screws 44 are released and the slide is drawn outedgewise, as is shown in Fig. 5, until the pivot member 36 stops furthermovement. The outer end of the slide is then dropped downward, as shownin Figs. 1 and 6, the notches 39 and 40 clearing at this time the edgesof the guides 19 and 20. The pivot member 36 lies between the frontflanges 37 and 38 upon the front, and the stop 41 on the rear so thatthe slide cannot be moved backward or forward but will remain in thisposition while cleaning or lamp renewal is being carried on. lVhen it isdesired to close the slide, the outer end is raised into the positionshown in Fig. 5 and the slide is pushed edgewise into place. The pivotmember 36 rides over the stop 41 and slides backward until it is guidedbetween the guides 42 and the guides 17, 18 or 19, 20 as the case maybe. The stops 41 do not interfere with the movement of the panel itselfinasmuch as the frame of the panel is narrower than is the pivot member36 as shown in Fig. 8. When the panel has been pushed to the properposition the set screws 44 are tightened to project into the holes 45 sothat the slide cannot be moved edgewise and as a consequence the slideor panel will be locked into position.

I do not intend to be limited to the precise form or proportions shownand described, as the invention may appear in other mechanisms than theone I have illustrated.

It is apparent that the device may be secured or suspended from above.If desired the two sides of the casing may be made symmetrical. I employthe term translucent to mean capable of transmitting light todistinguish from the term opaque.

I claim:

1. In combination a casing having an open bottom portion, lampsupporting means in said casing, a movable bottom containing atranslucent portion, horizontal guides for said bottom, pivot means onsaid bottom for preventing complete withdrawal of said bottom from saidguides, said bottom being adapted to be swung about said pivot aftw thesame is moved to the outermost position on said guides and means forholding said bottom on said guides in position to close said opening.

2. In combination a casing having an open bottom portion, lampsupporting means in said casing, a movable slide having a translucentportion, said slide being adapted to close the bottom of said casing,horizontal guide means on said casing to support said slide, pivot meanson one edge of said sl de, means on said casing to engage said pivotmeans to prevent withdrawal of said slide from said casing. said slidebeing adapted to be rotated about said pivot means when the same engagessaid means on the casing, and holding means for preventing said slide111 closed position from being moved horizontally on said guide.

3. In combination, a casing, lamp supporting means in said casing, amovable slide having a translucent portion, guide means on said casingto support said slide, pivot means on one edge of said slide, said slidehaving a notch adjacent said pivot means to permit said slide to beswung about said pivot means and stop means on said casing to prevent amotion of translation of said slide when said slide has been drawnoutward on said guide and rotated.

4. In combination, an open casing, lamp supporting meansin said casing,a slide for closing said casing, said slide having a transparentportion, guiding means on said casing for supporting said slide inposition to close said opening, a pivot member projecting from each sideof said slide, said casing having means to engage said pivot member toprevent withdrawal of the same from said guiding means, said slide beingadapted to swing about said pivot member from its horizontal positionand means for preventing movement of said slide sidewise when it isswung about the pivot.

5. In combination, an open casing, lamp supporting means in said casing,a movable slide for closing said opening, said slide having atranslucent portion, guide means on said casing to support said slide inposition to close said opening, pivot means on one edge of said slidefor pivotally supporting the slide when in open position, means on saidcasing to engage said pivot means to prevent withdrawal of said slidemeans for holding said slide firmly in position on said guides to closesaid casing and means to pre vent lateral displacement of said slidewhen the same is swung about said pivot means.

6. In combination an open casing, a slide member having a transparentportion, guiding means along the open side of said casing for supportingsaid slide in position to close said opening, a pivot member projectingfrom each side of said slide, said casing having means at one end ofsaid guiding means to engage said pivot member to prevent its beingwithdrawn completely from said casing and means at the other end of saidguiding means for engaging the pivot member when the slide member is inposition to close said open casing for preventing upward movement of theinner end of said slide.

7. In combination an open casing, a slide having a translucent portionfor closing said opening, guiding means on said casing for supportingsaid slide, a pivot member projecting from each side of said slide, saidcasing having means to engage said pivot member to prei'ent its beingwithdrawn completely from said casing, said casing having stop means atone end of the guiding means to prevent movement ofsaid pivot member outof the guiding means and having further means at the other end of saidguiding of said opening,

means for engaging said pivot member to hold the inner end of said slideagainst upward movement.

8. In combination a casing having an open bottom, guide members alongthe sidesswung about the pivot means.

a casing having an In combination open bottom, guide members along thesides a slide movable in said guide members, said slide being normallyheld in said guide members to close said opening, pivot means on one endof said slide, said slide being movable out of said guide members, meanson said casing for engaging said pivot means, said slide hav ing notchesadj permit the slide to be swung about the pivot means, said notchespreventing more than a predetermined amount of motion of said slide withrespect to said guide members When said slide is swung about the pivotmeans, and means for preventing a motion of translation. of said slidewhen the same is swung about said pivot.

10. A casing having an open bottom, a

slide for closing said open bottom, said casing having lateral flangesextending inward so that the space between said flanges is less than thewidth of said slide, said flanges serving as guides to hold the slide inposition to close the opening, pivot members extending from the sides ofsaid slide at the back edge thereof, said slide having notches in theside edges in front of said pivot members, means on said casing toprevent said pivot members being with-" drawn from said flanges, andmeans on the rear end of said flanges to engage said pivot members whensaid slide is in the closed positionfor preventing the rear end of saidslide from moving upwardly.

11. A casing having an open bottom, a slide for closing said openbottom, said casing having lateral flanges extending inward so that thespace between said flanges is less than the width of said slide, saidflanges serving as guides to hold the slide in position to close theopening, pivot members extending from the sides of said slide at theback edge thereof, said slide having notches in the side edges in frontof said pivot members, means on said casing to prevent said pivotmembers being of said guide,

acent said pivot means to withdrawn from said flanges, and means on therear end of said flanges to engage said pivot members when said slide isin the closed position for preventing the rear end of said slide frommoving upwardly and stop means to preventsaid slide being moved inwardlywhen it is swung out of the plane in which it normally lies when closingsaid opening.

12. In combination a generally prismatic casing adapted to be placed inthe corner betweena horizontal wall and a vertical wall, said casinghaving an open bottom, a translucent slide for closing said opening,

said casing having horizontal guide means along the bottom to hold saidslide, pivot means on one end of said slide and fastening means for theother end. of said slide to permit said slide to be slid out edgewiseand then swung about the edge of the opening remote from both of saidwalls, the fastening means for the slide being adapted to cooperate withthe same edge of the easing to hold said slide in closed position.

In witness whereof, I hereunto subscribe my name this 7th day of April,A. D. 1916,

HENRY A. FRAMBURG.

